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From: email@example.com (Jeff)
Subject: Re: Washing PCB's after soldering...with what?
Date: 21 Nov 2002 09:56:53 -0800
NNTP-Posting-Date: 21 Nov 2002 17:56:53 GMT
firstname.lastname@example.org (Bob Wilson) wrote in message news:...
> In article <email@example.com>,
> firstname.lastname@example.org says...
> >"PCS Electronics" wrote in
> > news:...
> >> We're hand-soldering (small series) our PCBs and are
> >> wondering what would be the best chemical for washing
> >> the boards afterwards.
> >> We've tried Acetone and Ethanol, the first is way too strong as
> >> it melts the caps and other plastic, the second (Ethanol - alcohol)
> >> leaves the PCB looking very dry and ugly with white powder
> >> where the soldering paste used to be.
> >> Does anyone here have experience with this kind of stuff?
> >Assuming you are using rosin core solder:
> >I use Ethanol first, scrubbing the board thoroughly at the rosin
> >residue with a solvent brush and rinsed under water. Then, I spray the
> >board with 409 household cleaner; scrubbing lightly with an ordinary
> >brush under running water, then use compressed air to dry it out.
> >Sparkles like new.
> >Jeff in AZ
> One has to wonder why you are doing this, when there are so many better
> methods (such as using a proper blend of solvents, or even a saponifier in
> water). I often wonder why hobbyists seem to want to use the most oddball
> approach to cleaning PCBs, when there is all sorts of data out there
> explaining how to do it properly and simply. Well at least you're not using
> brake fluid, like some guy recommended some time ago!
Bob, perhaps before you should do an analysis of the solvent I
recommended before dismissing it to a hobby oddball approach.
You might find that some of us have considerable insight to the issues
we offer advice on.
Go have a swig of the brake fluid you associated my recommendation
Jeff, in AZ
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